在OpenStack云平台上手动迁移云主机
[root@controller ~]# source /etc/keystone/admin-openrc.sh [root@controller ~]# nova list +--------------------------------------+-----------+--------+------------+-------------+------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+-----------+--------+------------+-------------+------------------------+ | c2b5ed8f-0a7c-4bd4-adab-78b096cb0857 | master | ACTIVE | - | Running | ext-net=192.168.200.6 | | a372558d-884c-421f-9b32-2dce2e99118e | node | ACTIVE | - | Running | ext-net=192.168.200.7 | | 5136c8ff-76ea-466d-b0c1-ae4be6f693e2 | rabbitmq1 | ACTIVE | - | Running | ext-net=192.168.200.21 | | 6901f6ae-31de-4dbf-b37b-673d9526e135 | rabbitmq2 | ACTIVE | - | Running | ext-net=192.168.200.5 | | 0fe821f7-7184-4378-90d2-0e62a0f03600 | rabbitmq3 | ACTIVE | - | Running | ext-net=192.168.200.3 | +--------------------------------------+-----------+--------+------------+-------------+------------------------+ [root@controller ~]# nova show rabbitmq1 +--------------------------------------+----------------------------------------------------------+ | Property | Value | +--------------------------------------+----------------------------------------------------------+ | OS-DCF:diskConfig | AUTO | | OS-EXT-AZ:availability_zone | nova | | OS-EXT-SRV-ATTR:host | controller | | OS-EXT-SRV-ATTR:hostname | rabbitmq1 | | OS-EXT-SRV-ATTR:hypervisor_hostname | controller | | OS-EXT-SRV-ATTR:instance_name | instance-00000019 | | OS-EXT-SRV-ATTR:kernel_id | | | OS-EXT-SRV-ATTR:launch_index | 0 | | OS-EXT-SRV-ATTR:ramdisk_id | | | OS-EXT-SRV-ATTR:reservation_id | r-9q8w190y | | OS-EXT-SRV-ATTR:root_device_name | /dev/vda | | OS-EXT-SRV-ATTR:user_data | - | | OS-EXT-STS:power_state | 1 | | OS-EXT-STS:task_state | - | | OS-EXT-STS:vm_state | active | | OS-SRV-USG:launched_at | 2020-11-19T00:47:28.000000 | | OS-SRV-USG:terminated_at | - | | accessIPv4 | | | accessIPv6 | | | config_drive | | | created | 2020-11-19T00:47:19Z | | description | - | | ext-net network | 192.168.200.21 | | flavor:disk | 20 | | flavor:ephemeral | 0 | | flavor:extra_specs | {} | | flavor:original_name | mysql | | flavor:ram | 2048 | | flavor:swap | 0 | | flavor:vcpus | 1 | | hostId | c679b0b05edfbd4e0072f93d8408ff78bff3a4cbde7b02e93690c7b5 | | host_status | UP | | id | 5136c8ff-76ea-466d-b0c1-ae4be6f693e2 | | image | centos7.5 (8b03410b-4f3d-49fa-9acf-c0a1aa20160c) | | key_name | - | | locked | False | | metadata | {} | | name | rabbitmq1 | | os-extended-volumes:volumes_attached | [] | | progress | 0 | | security_groups | default | | status | ACTIVE | | tags | [] | | tenant_id | 03a2483a6b364606b7e0bc3ccc6064b2 | | updated | 2020-11-19T00:47:28Z | | user_id | f54f627a05984048984fd117c894925e | +--------------------------------------+----------------------------------------------------------+ [root@controller ~]# nova stop rabbitmq1 Request to stop server rabbitmq1 has been accepted. [root@controller ~]# cd /var/lib/nova/instances/ [root@controller instances]# ll total 4 drwxr-xr-x. 2 nova nova 54 Nov 19 08:47 5136c8ff-76ea-466d-b0c1-ae4be6f693e2 drwxr-xr-x. 2 nova nova 54 Nov 19 08:53 6901f6ae-31de-4dbf-b37b-673d9526e135 drwxr-xr-x. 2 nova nova 102 Nov 18 14:15 _base -rw-r--r--. 1 nova nova 33 Nov 19 08:22 compute_nodes drwxr-xr-x. 2 nova nova 146 Nov 18 14:13 locks [root@controller instances]# cd 5136c8ff-76ea-466d-b0c1-ae4be6f693e2/ [root@controller 5136c8ff-76ea-466d-b0c1-ae4be6f693e2]# ll total 118992 -rw-------. 1 root root 52436 Nov 19 09:29 console.log -rw-r--r--. 1 root root 121831424 Nov 19 09:29 disk -rw-r--r--. 1 nova nova 79 Nov 19 08:47 disk.info [root@controller 5136c8ff-76ea-466d-b0c1-ae4be6f693e2]# cd .. [root@controller instances]# scp -r 5136c8ff-76ea-466d-b0c1-ae4be6f693e2 root@compute:/var/lib/nova/instances/ root@compute's password: disk.info 100% 79 7.2KB/s 00:00 disk 100% 116MB 6.5MB/s 00:18 console.log 100% 51KB 3.8MB/s 00:00 [root@controller instances]# rm -rf 5136c8ff-76ea-466d-b0c1-ae4be6f693e2/【compute】
[root@compute ~]# cd /var/lib/nova/instances/
[root@compute instances]# ll
total 4
drwxr-xr-x. 2 nova nova 54 Nov 19 08:55 0fe821f7-7184-4378-90d2-0e62a0f03600
drwxr-xr-x. 2 root root 54 Nov 19 09:30 5136c8ff-76ea-466d-b0c1-ae4be6f693e2
drwxr-xr-x. 2 nova nova 54 Nov 14 17:02 a372558d-884c-421f-9b32-2dce2e99118e
drwxr-xr-x. 2 nova nova 54 Nov 13 11:55 _base
drwxr-xr-x. 2 nova nova 54 Nov 14 17:00 c2b5ed8f-0a7c-4bd4-adab-78b096cb0857
-rw-r--r--. 1 nova nova 30 Nov 19 09:00 compute_nodes
drwxr-xr-x. 2 nova nova 93 Nov 13 12:29 locks
[root@compute instances]# chown nova:nova 5136c8ff-76ea-466d-b0c1-ae4be6f693e2/【controller】
[root@controller instances]# mysql -uroot -p000000
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 13553
Server version: 10.1.20-MariaDB MariaDB ServerCopyright (c) 2000, 2016, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]> show databases;
+--------------------+
| Database |
+--------------------+
| cinder |
| glance |
| heat |
| information_schema |
| keystone |
| mysql |
| neutron |
| nova |
| nova_api |
| nova_cell0 |
| performance_schema |
| zun |
+--------------------+
12 rows in set (0.01 sec)MariaDB [(none)]> use nova
Reading table information for completion of table and column names
You can turn off this feature to get a quicker startup with -ADatabase changed
MariaDB [nova]> update instances set host='compute',node='compute' where uuid='5136c8ff-76ea-466d-b0c1-ae4be6f693e2';
Query OK, 1 row affected (0.00 sec)
Rows matched: 1 Changed: 1 Warnings: 0MariaDB [nova]> flush privileges;
Query OK, 0 rows affected (0.08 sec)MariaDB [nova]> Ctrl-C -- exit!
Aborted【compute】
MainPID=25265 Id=openstack-nova-compute.service ActiveState=active
[root@compute instances]# systemctl restart openstack-nova-compute.service
[root@compute instances]# nova start 5136c8ff-76ea-466d-b0c1-ae4be6f693e2
Request to start server 5136c8ff-76ea-466d-b0c1-ae4be6f693e2 has been accepted.
[root@compute instances]# nova list
+--------------------------------------+-----------+---------+-------------+-------------+------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-----------+---------+-------------+-------------+------------------------+
| c2b5ed8f-0a7c-4bd4-adab-78b096cb0857 | master | ACTIVE | - | Running | ext-net=192.168.200.6 |
| a372558d-884c-421f-9b32-2dce2e99118e | node | ACTIVE | - | Running | ext-net=192.168.200.7 |
| 5136c8ff-76ea-466d-b0c1-ae4be6f693e2 | rabbitmq1 | SHUTOFF | powering-on | Shutdown | ext-net=192.168.200.21 |
| 6901f6ae-31de-4dbf-b37b-673d9526e135 | rabbitmq2 | ACTIVE | - | Running | ext-net=192.168.200.5 |
| 0fe821f7-7184-4378-90d2-0e62a0f03600 | rabbitmq3 | ACTIVE | - | Running | ext-net=192.168.200.3 |
+--------------------------------------+-----------+---------+-------------+-------------+------------------------+
[root@compute instances]# nova list
+--------------------------------------+-----------+--------+------------+-------------+------------------------+
| ID | Name | Status | Task State | Power State | Networks |
+--------------------------------------+-----------+--------+------------+-------------+------------------------+
| c2b5ed8f-0a7c-4bd4-adab-78b096cb0857 | master | ACTIVE | - | Running | ext-net=192.168.200.6 |
| a372558d-884c-421f-9b32-2dce2e99118e | node | ACTIVE | - | Running | ext-net=192.168.200.7 |
| 5136c8ff-76ea-466d-b0c1-ae4be6f693e2 | rabbitmq1 | ACTIVE | - | Running | ext-net=192.168.200.21 |
| 6901f6ae-31de-4dbf-b37b-673d9526e135 | rabbitmq2 | ACTIVE | - | Running | ext-net=192.168.200.5 |
| 0fe821f7-7184-4378-90d2-0e62a0f03600 | rabbitmq3 | ACTIVE | - | Running | ext-net=192.168.200.3 |
+--------------------------------------+-----------+--------+------------+-------------+------------------------+
[root@compute instances]# nova show rabbitmq1
+--------------------------------------+----------------------------------------------------------+
| Property | Value |
+--------------------------------------+----------------------------------------------------------+
| OS-DCF:diskConfig | AUTO |
| OS-EXT-AZ:availability_zone | nova |
| OS-EXT-SRV-ATTR:host | compute |
| OS-EXT-SRV-ATTR:hostname | rabbitmq1 |
| OS-EXT-SRV-ATTR:hypervisor_hostname | compute |
| OS-EXT-SRV-ATTR:instance_name | instance-00000019 |
| OS-EXT-SRV-ATTR:kernel_id | |
| OS-EXT-SRV-ATTR:launch_index | 0 |
| OS-EXT-SRV-ATTR:ramdisk_id | |
| OS-EXT-SRV-ATTR:reservation_id | r-9q8w190y |
| OS-EXT-SRV-ATTR:root_device_name | /dev/vda |
| OS-EXT-SRV-ATTR:user_data | - |
| OS-EXT-STS:power_state | 1 |
| OS-EXT-STS:task_state | - |
| OS-EXT-STS:vm_state | active |
| OS-SRV-USG:launched_at | 2020-11-19T00:47:28.000000 |
| OS-SRV-USG:terminated_at | - |
| accessIPv4 | |
| accessIPv6 | |
| config_drive | |
| created | 2020-11-19T00:47:19Z |
| description | - |
| ext-net network | 192.168.200.21 |
| flavor:disk | 20 |
| flavor:ephemeral | 0 |
| flavor:extra_specs | {} |
| flavor:original_name | mysql |
| flavor:ram | 2048 |
| flavor:swap | 0 |
| flavor:vcpus | 1 |
| hostId | 542871f997cea71ff625ae4999c7455f3d96b937926f092633d6e153 |
| host_status | UP |
| id | 5136c8ff-76ea-466d-b0c1-ae4be6f693e2 |
| image | centos7.5 (8b03410b-4f3d-49fa-9acf-c0a1aa20160c) |
| key_name | - |
| locked | False |
| metadata | {} |
| name | rabbitmq1 |
| os-extended-volumes:volumes_attached | [] |
| progress | 0 |
| security_groups | default |
| status | ACTIVE |
| tags | [] |
| tenant_id | 03a2483a6b364606b7e0bc3ccc6064b2 |
| updated | 2020-11-19T01:38:36Z |
| user_id | f54f627a05984048984fd117c894925e |
+--------------------------------------+----------------------------------------------------------+
